By rasi, I am not
referring to your sun sign, i.e. sun's position in the zodiac. Sun
remains in the same sign for nearly 30 days. For example people born between
15.01.2014 to 12.02.2014 belong to makara rasi. This method is followed in
Kerala, some parts of Tamil Nadu and Malabar as well as in portions of
North East India. According to Western astrology, people born between
22.12.2013 to 20.01.2014 belong to makara rasi (Capricorn). The
difference is due to deduction of certain element called ayanamsha
(precision value).

Whereas moon takes two and
half days appx. to cross a zodiac sign. Every rasi contains a
set of three stars (nakshatras) and some nakshatras spread in two
signs. Each rasi has such nine padas. That is to say Uttarashada 2,3,4
padas, Sravana all padas and Dhanista 1st and 2nd padas belong to makara
rasi, you might have been born in any of the Gregorian months. In Hindu astrology the transit effects are considered
from the sign occupied by moon (nirayana position) at the time of birth,
called rasi. I also made several intensive experiments in Kerala system of
nirayana surya stita rasi, before I settled down for chandramana rasi
system. More